How to use BLE to do FOTA (Firmware update) on LinkIt 7697 HDK
Additinal resource can be found at https://docs.labs.mediatek.com/resource/mt7687-mt7697
- Note.
- Linkit 7697 HDK is only supported by LinkIt SDK 4.3 and later version.
- There might be compile error to use them on older version.android/ble_fota: Android studio project files.project/linkit7697_hdk/apps/ble_fota: LinkIt SDK project files.fota_blink_hi.bin: A sample "FOTA ready" bin for testing firmware update.- This firmware will blink usr led of Linkit 7697 HDK in a Morse code "HI" pattern (4 dot + 2 dot).
- Wikipedia link of Morse code.
- Put/Extract the files into SDK root, so that there is
[SDK_root]/project/linkit7697_hdk/apps/ble_fota - Execute
./build.sh linkit7697_hdk ble_fota blunder Linux enviornment- note. make sure to add
blpostfix to rebuild bootloader
- note. make sure to add
- Check generated bin at
[SDK_root]/out/linkit7697_hdk/ble_fota/ble_fota.bin - Use Flashtool to download
[SDK_root]/out/linkit7697_hdk/ble_fota/flash_download.iniinto LinkIt 7697 HDK
- Extract
android/ble_fotato anywhere you prefer - Have Android studio open the project
- Build->Make Project
- Run->Run Application
- Have
fota_blink_hi.bindownloaded to your phone.
- Check
FOTA ROM Packagetool (can be found in[SDK_root]/tools/PC_tool.zipor at Tools section of Labs) - This tool can turn a normal firmware (used by flashtool) into a FOTA ready firmware (used by FOTA).
- A. Turn on Device, when it is ready, it will start "BLE Advertising" (appear as BLE_FOTA). Launch Android App, Scan and connects to BLE_FOTA Device.
- B. After connected, the state should become "Connected", Click "LOAD BIN" and select
fota_blink_hi.bin - C. Wait for FOTA transmission complete
- D. Check USR LED of LinkIt 7697 HDK. It should blink in a Morse code pattern (4 dot and 2 dot) which means "HI"
Below are log output from UART port of LinkIt 7697 HDK
